Rear bumper



FIG. 1 is a front perspective view of a rear bumper showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

It will be understood that the broken lines shown in the drawingsillustrate portions of the rear bumper that form no part of the claimeddesign.

CLAIM The ornamental design for a rear bumper, as shown and described.